Genetics review

What does heterozygous mean?

• An organism that has the same genes for a trait (TT or tt)
• An organism that has different genes for a trait (Tt)
• When neither gene is fully dominant; offspring is a mixture of both
• the different forms of a trait (hair color--> brown, blonde, red

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is one advantage of sexual reproduction?

• offspring are identical to parents
• offspring are resistant to viruses
• offspring are born live, rather thna from eggs
• offspring inherit a wider variety of genetic information

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NGSS.HS-LS3-2

NGSS.HS-LS4-2

The sex of an offspring is determined by ______________________.

• the mother
• the father
• the mother and the father
• by the environment

Tags

NGSS.HS-LS3-1

What is a phenotype?

• The expression of a trait; what you see.
• refers to the genetic makeup of an individual
• An organism that has the same genes for a trait (ex. TT or tt)
• the passing of traits from parent to offspring

Tags

NGSS.HS-LS3-3

The inherited combination of alleles is known as the offspring's

• heredity
• phenotype
• genotype
• redigree

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following genotypes would be considered heterozygous?

• BB
• gg
• Ff
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Where, in the eukaryotic cell, is DNA located?

• ribosomes
• nucleus
• E.R.
• cytoplasm

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NGSS.MS-LS1-2

One form of a gene is called_______________

• a DNA
• a Phenotype
• a trait
• an allele

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NGSS.HS-LS3-2

If something is heterozygous, it is also...

• purebred
• hybrid
• dominant
• recessive

Tags

NGSS.HS-LS3-2

Which of the following terms refers to the different possibilities of a gene?

• chromosome
• DNA
• Punnett Squares
• allele

Tags

NGSS.HS-LS3-2